Porsche 911 vs Porsche 918 Spyder Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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User Ranking Drivers and owners ranked these cars in 9 categories.

Used Car Pricing Used listing price comparison and analysis.

2021 Porsche 911
Carrera 4 Cabriolet AWD
CarGurus Instant Market Value
$119,300
2015 Porsche 918 Spyder
Roadster
CarGurus Instant Market Value
$845,000
3 listings nationwide

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Expert Reviews Reviews from CarGurus experts.

2021 Porsche 911
Carrera 4 Cabriolet AWD
Josh Jacquot Preview:

Entering its second year in the 992 generation, Porsche’s iconic 911 remains one of the most versatile and daily drivable sports cars ever made. Its trims and drive configurations enco...

2015 Porsche 918 Spyder
Roadster
John Goreham Preview:

Porsche did not need to use a hybrid electric drive system in the 918 Spyder hypercar. The automaker could have set the track record at the famous Nurburgring without using two electri...

User Reviews Reviews from CarGurus users who have driven or owned the car.

2021 Porsche 911
Carrera 4 Cabriolet AWD
No User Reviews
2015 Porsche 918 Spyder
Roadster
125
drgoodwrench writes:
Wicked fun to drive at Laguna Seca, not sure I could handle is as a daily driver..mostly due to all the rice r...

Specs

2021 Porsche 911
Carrera 4 Cabriolet AWD
2015 Porsche 918 Spyder
Roadster
Powertrain 8-Speed Dual Clutch 7-Speed Dual Clutch
Drivetrain
AWD
AWD
Fuel Economy, City
--
20 MPG
Fuel Economy, Highway
--
24 MPG
Fuel Tank Volume 17.6 gal 18.5 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
379 hp @ 6,500 RPM
887 hp @ 8,700 RPM
Torque
331 lb-ft @ 1,950 RPM
944 lb-ft @ 6,600 RPM
Cylinders
6 cylinders
8 cylinders
Compression Ratio
10.2:1
9.8:1
Displacement
3,000 cc
4,600 cc
Bore x Stroke
3.58 in x 3.01 in
3.74 in x 3.19 in
Safety
ABS Brakes Standard Standard
Driver Airbag Standard Standard
Passenger Airbag Standard Standard
Front Side Airbags -- Standard
NHTSA Crash Test Results
Comfort and Convenience
Leather Seats -- Standard
Air Conditioning Standard Standard
CD Player -- Standard
Radio Standard Standard
Power Windows Standard Standard
Power Door Locks Standard Standard
Driver Power Seats Standard Standard
Passenger Power Seats Standard Standard
Interior
Maximum Seating 4 seats 2 seats
Front Legroom -- --
Back Legroom -- --
Payload and Towing
Cargo Volume 4.6 cu ft 3.7 cu ft
Maximum Payload 883 lbs --
Exterior
Length 177.9 in 182.8 in
Width 79.7 in 76.4 in
Height 51.1 in 45.9 in
Wheelbase 96.5 in 107.5 in

Available Options

2021 Porsche 911
Carrera 4 Cabriolet AWD
2015 Porsche 918 Spyder
Roadster

Exterior Colors

  • Basalt Black Metallic
  • Black
  • Custom Color Uni
  • Dark Blue Metallic
  • GT Silver Metallic
  • Guards Red
  • Leather In Custom Color
  • Liquid Metal Chrome Blue
  • Liquid Metal Silver
  • Meteor Gray Metallic
  • Racing Yellow
  • Rhodium Silver Metallic
  • Sapphire Blue Metallic
  • White

Option Packages

  • Lifting System Front Axle
  • Carbon FLOORMAT W/Acid Green Piping
  • Carbon FLOORMAT W/Orange Piping
  • Carbon FLOORMAT W/Silver Piping
  • Electric Comfort Heating
  • Factory Collection Leipzig
  • Factory Collection Zuffenhausen
  • Interior Package Carbon
  • Painted Key W/Leather Key Pouch
  • Seat Belts W/Accent Stripes Acid Green
  • Seat Belts W/Accent Stripes Orange
  • Seat Belts W/Accent Stripes Silver
  • MOCCA Brown/Orange, Authentic Leather Trim
  • MOCCA Brown/Silver, Authentic Leather Trim
  • Onyx Black/Acid Green, Authentic Leather Trim
  • Onyx Black/Silver, Authentic Leather Trim
  • Wheel: 20" F & 21" R 918 SPYDER Painted Platinum
  • Wheel: 20" Front & 21" Rear 918 SPYDER Magnesium

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